Tools

Free calculators and checkers for your kidneys.

Quick, focused tools that run entirely in your browser. Nothing you type is sent to a server or saved across devices. Use them before your nephrology visit, while travelling, or just to sanity-check a number on your latest lab report.

No loginNo trackingWorks offline once loaded

Lab interpretation

eGFR calculator

Estimate kidney function from creatinine + age + sex using the 2021 CKD-EPI race-free equation.

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Daily protein target

Stage-aware grams-per-day band, plus a table of common Indian foods that fill it.

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Daily decisions

Daily fluid budget

Stage and modality-aware fluid allowance with a visual breakdown of what 1 L looks like.

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Salt-substitute checker

Paste a brand name or ingredient list. We flag any potassium-chloride blend marketed as "healthy salt."

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Hemodialysis

IDWG calculator

Inter-dialytic weight gain as a percentage of dry weight, with the clinical context.

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Doctor-visit prep

Pick from a curated library of questions across labs, diet, meds, and mental health. Print a clean numbered list.

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Need more than a calculator?

The mobile app tracks your labs, foods, fluids, and dialysis sessions over time — see trends, set reminders, and (Premium) share a summary with your nephrologist. Visit our About page for the full story.